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| author | Peter Eisentraut <peter_e@gmx.net> | 2017-04-25 14:40:33 -0400 |
|---|---|---|
| committer | Peter Eisentraut <peter_e@gmx.net> | 2017-04-25 14:40:33 -0400 |
| commit | a3f17b9c315512e9c116dbc243056aad8b372e18 (patch) | |
| tree | 3cc5b11b9e0ecf99c4abde9899f72cba339f8bb1 /src/backend/commands/subscriptioncmds.c | |
| parent | ef0ba572b6e163328a2292bf9d6de7c919bd7cdd (diff) | |
| download | postgresql-a3f17b9c315512e9c116dbc243056aad8b372e18.tar.gz postgresql-a3f17b9c315512e9c116dbc243056aad8b372e18.zip | |
Wake up launcher when enabling a subscription
Otherwise one would have to wait up to DEFAULT_NAPTIME_PER_CYCLE until
the subscription worker is considered for starting.
There is a small race condition: If one enables a subscription right
after disabling it, the launcher might not have registered the stopping
when receiving the wakeup signal for the re-enabling. The start will
then not happen right away but after the full cycle time.
Author: Kyotaro HORIGUCHI <horiguchi.kyotaro@lab.ntt.co.jp>
Diffstat (limited to 'src/backend/commands/subscriptioncmds.c')
| -rw-r--r-- | src/backend/commands/subscriptioncmds.c | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/src/backend/commands/subscriptioncmds.c b/src/backend/commands/subscriptioncmds.c index c29a57ed52d..6a404bbe1e3 100644 --- a/src/backend/commands/subscriptioncmds.c +++ b/src/backend/commands/subscriptioncmds.c @@ -644,6 +644,9 @@ AlterSubscription(AlterSubscriptionStmt *stmt) BoolGetDatum(enabled); replaces[Anum_pg_subscription_subenabled - 1] = true; + if (enabled) + ApplyLauncherWakeupAtCommit(); + update_tuple = true; break; } |